Image Authentication using Visual Cryptography
This work addresses security issues in image authentication for users vulnerable to share-based attacks, but it appears incremental as it builds on existing visual and public key cryptography methods.
The paper tackles the problem of image authentication by addressing an attack that generates fake shares to deceive users, proposing a system that uses a centralized server to generate and authenticate shares as a countermeasure.
This report gives a novel technique of image encryption and authentication by combining elements of Visual Cryptography and Public Key Cryptography. A prominent attack involving generation of fake shares to cheat honest users has been described and a demonstration of the proposed system employing a centralised server to generate shares and authenticate them on the basis of requests is made as a counter to the described attack.